Radiator eqr automobiles



or B. RUTHERFORD. RADIATOR FORAUTOMOBILES.

FILED HEB-19.19M-

fiwenlvr: Olive 3.3a thezyfiwd,

Patented Mar. 27, 1923.

OLIVER BRONN RUTHERFORD, OF BALTIMORE, MARYLAND.

RADIATOR FOR AUTOMOBILES.

Application filed Febrpary 19, 1921. Serial No. 446,380.

To all whoa/t it may concern.

lie it known that 1, Drama 3. tn'rnnnronn, a citizen of the UnitedStates, and resident of the city of Baltimore, State of Maryland, haveinvented certain new and useful Improvements in Radiators forAutomobiles, of which the following is a specification.

The invention is designed more particularly to provide a radiator forautomobiles, and one object is to enable the radiator to be built up ofa plurality of members by using two units, one unit, when assembled withother units of a like character, furnishing the water tubes, and theother unit furnishing the spacing means between the water tubes.

I design to provide a simple construction Which will secure a maximumcirculation of the water and a maximum of cooling surfaces exposed tothe air.

The invention is shown in the accompanying drawings, in which Figure lis a perspective view of one of the water tube units.

Fig. 2 is a similar view of the spacing unit.

Fig. 3 is a vertical sectional view through the radiator, and

Fig. 4 is a horizontal sectional view on the line 44 of Fig. 3.

In these drawings, the unit which is used to build up the water tubesconsists of a plate 1 (Fig. 1) of thin sheet metal having spaced aparthorizontal ribs pressed or swaged out therefrom, as shown at 2, leavingrecesses at 3 on one face. The vertical edges of these units are offsetslightly at a in relation to the main body portion of the. unit, and inmaking a tube, these offset flanges or edges are soldered together,leaving the intermediate portions of the, plates slightly separated, asat 5, to form the water passage which connects at its upper and lowerends with the heads of the radiator in the ordinary way. The water, ofcourse. enters the recesses 5 and the ribs which provide these recessesfurnish an extended radiating surface adapted to be cooled by the aircirculation. These water tubes, composed, as stated, of the fiat ribbedplates, are spaced apart by the spacing units shown in Fig. 2, and eachof these units is composed of thin sheet metal corrugated so as toprovide recesses 6 adjacent each other and facing in oppositedirections. The bases of these recesses are fiat and are of considerablebreadth, as shown at 7, and one recess is directly adjacent the nextrecess, being separated therefrom only by the thin wall indicated at 8.

In assembling the spacing units between the flat water tubes, the basesof the corrugations indicated at 7 fit throughout their flat facesagainst the main body portions of the plates which make up the watertubes and lie between the ribs of the water tubes. They extend over theentire main body portions of the water tube plates and are unitedthereto by solder, so that the result is the provision of a series ofhorizontally disposed air spaces or chambers open at their front andrear ends, so that the air may. circulate from front to rear freely andbe brought in contact with the curved walls 2 of the ribs and it will benoticed that each air space of the spacing member receives one of theribs of the water tube.

The water tube is formed by matching its two plates so that the ribscome opposite each other, forming enlarged circular-like recesses, asshown at 9, for the circulation of the water, and its contacts with aconsiderable area, namely, the wall of the rib which is exposed to theair currents passing from front to rear through the spacing member. Thespacing members, as above stated, are formed of corrugated plates, andthese plates are of a width corresponding to the width of the platesforming the water tubes, and at the vertical edges the spacing unit isprovided with an offset flange or edge on its vertically disposedsurfaces, so as to fit upon the ofiset flanges of the plates forming thewater tubes. This offset edge of' the spacing plate or unit is indicatedat 10 and this is soldered to the edge of the plate of the water tube.

It would seem from the above that two units are utilized in building upthe radiator, one unit being the ribbed water tube plate and the otherthe corrugated spacing plate. By assembling a number of these, asindicated above, the whole nest of tubes and air conducting spacingmembers are provided to make up the radiator of the desired area.

It will be noted that the spacing members are united with the plates ofthe water tubes throughout all the vertical contacting surfaces of thesaid spacing plates and tubes, and in case of leakage into any one ofthe air spaces, this leak may be stopped by plugging the ends of thisparticular air space, and there will be no passage of the water from theleak from one air space to another,

because, as stated, the bases of the corrugations are solderedthroughout their surface area to the plates of the water tube, and thusone air space will be sealed in respect to the adjacent air spaces ofthe spacing plate, and there will be no passage of water from one airspace to another.

I claim as my invention:

A radiator for automobileshaving Water tubes, each consisting of a pairof spaced apart flat plates, each plate having hollow ribs spaced apartwith a fiat portion of the plate between them, said hollow ribs on theopposing plates being arranged opposite each other to form waterchambers communicating with each other through the narrow crevicebetween the opposing flat portions of the said plates, and spacingmembers between the pairs of Water tube plates consisting ofhorizontally corrugated sheets, the corrugations being of rectangularform presenting horizontal and vertical wall sections, the latterfitting against and being substantially coextensive with the flatportions of the water tube plates between the corrugations thereof,substantially as described.

In testimony whereof I aflix mv signature.

OLIVER BROWN RUTHERFORD.

